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CVE-2021-27388

Estado: ModificadaCrítica (9.8)—

SINAMICS medium voltage routable products are affected by a vulnerability in the Sm@rtServer component for remote access that could allow an unauthenticated attacker to cause a denial-of-service condition, and/or execution of limited configuration modifications and/or execution of limited control commands on the SINAMICS Medium Voltage Products, Remote Access (SINAMICS SL150: All versions, SINAMICS SM150: All versions, SINAMICS SM150i: All versions).

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (3)

Siemens — Sinamics Sl150 FirmwareSiemens — Sinamics Sm150 FirmwareSiemens — Sinamics Sm150i Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-27388",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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        "source": "nvd@nist.gov",
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          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 3.9
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  "affected": [
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      "source": "productcert@siemens.com",
      "affectedData": [
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          "vendor": "n/a",
          "product": "SINAMICS Medium Voltage Products, Remote Access",
          "versions": [
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              "status": "affected",
              "version": "SINAMICS SL150: All versions, SINAMICS SM150: All versions, SINAMICS SM150i: All versions"
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  "published": "2021-06-15T20:15:11.770",
  "references": [
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      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-131-04",
      "tags": [
        "Not Applicable"
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      "source": "productcert@siemens.com"
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    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-131-04",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "productcert@siemens.com",
      "description": [
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          "lang": "en",
          "value": "CWE-20"
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  "descriptions": [
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      "lang": "en",
      "value": "SINAMICS medium voltage routable products are affected by a vulnerability in the Sm@rtServer component for remote access that could allow an unauthenticated attacker to cause a denial-of-service condition, and/or execution of limited configuration modifications and/or execution of limited control commands on the SINAMICS Medium Voltage Products, Remote Access (SINAMICS SL150: All versions, SINAMICS SM150: All versions, SINAMICS SM150i: All versions)."
    },
    {
      "lang": "es",
      "value": "Los productos enrutables de tensión media SINAMICS están afectados  por una vulnerabilidad en el componente Sm@rtServer para el acceso remoto que podría permitir a un atacante no autenticado causar una condición de denegación de servicio, y/o una ejecución de modificaciones de configuración limitadas y/o la ejecución de comandos de control limitados en los productos de media tensión SINAMICS, acceso remoto (SINAMICS SL150: Todas las versiones, SINAMICS SM150: Todas las versiones, SINAMICS SM150i: Todas las versiones)"
    }
  ],
  "lastModified": "2026-06-17T03:44:46.013",
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